between the very much married, now former cia director david petraeus and this woman, the also very much married biographer paula broadwell. >> you may know the affair came to light after this woman, 37- year-old jill kelley complained to a friend, an fbi agent. that would be this person here, that she was receiving threatening e-mails, reportedly from broadwell launching an investigation, and that put the lid on this. general john allen, a top commander in afghanistan, the man who took petraeus' place is now being investigated. seems when the fbi was looking into those e-mails, they also found 20 to 30,000 pages of back and forth between jill kelley and allen. some say they're potentially inappropriate, maybe even crossing the line. some say that other than a dear or a sweetheart, there's nothing going on. in another twist, remember that fbi agent, the one who started looking into the threatening e- mails? he's apparently now being investigated for sending shirtless pictures via e-mail over to kelley. he's now off the case. this is jill kelley's twin sister. what does she have to do wit
